// Name: help.h
// Purpose: interface of wxHelpController
// Author: wxWidgets team
-// RCS-ID: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+
+#define wxHELP_NETSCAPE 1
+
+
/**
- @class wxHelpController
+ Help search modes for wxHelpController::KeywordSearch().
+ */
+enum wxHelpSearchMode
+{
+ wxHELP_SEARCH_INDEX, ///< Search the index only.
+ wxHELP_SEARCH_ALL ///< Search all entries.
+};
+
+/**
+ @class wxHelpControllerBase
- This is a family of classes by which applications may invoke a help viewer
- to provide on-line help.
+ This is the abstract base class a family of classes by which applications
+ may invoke a help viewer to provide on-line help.
A help controller allows an application to display help, at the contents
or at a particular topic, and shut the help program down on termination.
The help viewer will only get run, however, just before the first call to
display something.
- Most help controller classes actually derive from wxHelpControllerBase and have
- names of the form wxXXXHelpController or wxHelpControllerXXX.
- An appropriate class is aliased to the name wxHelpController for each platform, as
- follows:
- - On desktop Windows, wxCHMHelpController is used (MS HTML Help).
- - On Windows CE, wxWinceHelpController is used.
- - On all other platforms, wxHtmlHelpController is used if wxHTML is compiled
- into wxWidgets; otherwise wxExtHelpController is used (for invoking an
- external browser).
-
- The remaining help controller classes need to be named explicitly by an
- application that wishes to make use of them.
-
- The following help controller classes are defined:
- - wxWinHelpController, for controlling Windows Help.
- - wxCHMHelpController, for controlling MS HTML Help. To use this, you need to
- set wxUSE_MS_HTML_HELP to 1 in setup.h and have the htmlhelp.h header from
- Microsoft's HTML Help kit. (You don't need the VC++-specific htmlhelp.lib
- because wxWidgets loads necessary DLL at runtime and so it works with all
- compilers.)
- - wxBestHelpController, for controlling MS HTML Help or, if Microsoft's runtime
- is not available, wxHtmlHelpController. You need to provide @b both CHM and
- HTB versions of the help file. For wxMSW only.
- - wxExtHelpController, for controlling external browsers under Unix.
- The default browser is Netscape Navigator. The 'help' sample shows its use.
- - wxWinceHelpController, for controlling a simple @c .htm help controller for
- Windows CE applications.
- - wxHtmlHelpController, a sophisticated help controller using wxHTML, in a
- similar style to the Microsoft HTML Help viewer and using some of the same
- files. Although it has an API compatible with other help controllers, it has
- more advanced features, so it is recommended that you use the specific API
- for this class instead. Note that if you use .zip or .htb formats for your
- books, you must add this line to your application initialization:
- @code wxFileSystem::AddHandler(new wxArchiveFSHandler); @endcode
- or nothing will be shown in your help window.
-
- @library{wxbase}
+ @library{wxcore}
@category{help}
- @see wxHtmlHelpController, @ref overview_html
+ @see wxHelpController, wxHtmlHelpController, @ref overview_html
*/
-class wxHelpController : public wxHelpControllerBase
+class wxHelpControllerBase : public wxObject
{
public:
/**
You can also change the parent window later with SetParentWindow().
*/
- wxHelpController(wxWindow* parentWindow = NULL);
+ wxHelpControllerBase(wxWindow* parentWindow = NULL);
/**
Destroys the help instance, closing down the viewer if it is running.
*/
- ~wxHelpController();
+ ~wxHelpControllerBase();
/**
If the help viewer is not running, runs it and displays the file at the given
This function is for backward compatibility only, and applications
should use DisplaySection() instead.
*/
- virtual bool DisplayBlock(long blockNo);
+ virtual bool DisplayBlock(long blockNo) = 0;
/**
If the help viewer is not running, runs it and displays the contents.
*/
- virtual bool DisplayContents();
+ virtual bool DisplayContents() = 0;
/**
Displays the section as a popup window using a context id.
See also the help sample for notes on how to specify section numbers for
various help file formats.
*/
- virtual bool DisplaySection(int sectionNo);
+ virtual bool DisplaySection(int sectionNo) = 0;
/**
Displays the text in a popup window, if possible.
@param newFrameEachTime
@true if a new frame is drawn with each invocation.
*/
- virtual wxFrame* GetFrameParameters(const wxSize* size = NULL,
- const wxPoint* pos = NULL,
+ virtual wxFrame* GetFrameParameters(wxSize* size = NULL,
+ wxPoint* pos = NULL,
bool* newFrameEachTime = NULL);
/**
/**
If the help viewer is not running, runs it, and searches for sections matching
the given keyword. If one match is found, the file is displayed at this section.
- The optional parameter allows the search the index (wxHELP_SEARCH_INDEX)
- but this currently only supported by the wxHtmlHelpController.
+ The optional parameter allows to search the index (wxHELP_SEARCH_INDEX)
+ but this currently is only supported by the wxHtmlHelpController.
- @e WinHelp, MS HTML Help:
If more than one match is found, the first topic is displayed.
- @e wxHtmlHelpController: see wxHtmlHelpController::KeywordSearch.
*/
virtual bool KeywordSearch(const wxString& keyWord,
- wxHelpSearchMode mode = wxHELP_SEARCH_ALL);
+ wxHelpSearchMode mode = wxHELP_SEARCH_ALL) = 0;
/**
If the help viewer is not running, runs it and loads the given file.
wxHtmlHelpController ignores this call.
*/
- virtual bool LoadFile(const wxString& file = wxEmptyString);
+ virtual bool LoadFile(const wxString& file = wxEmptyString) = 0;
/**
Overridable member called when this application's viewer is quit by the user.
This does not work for all help controllers.
*/
- virtual bool OnQuit();
+ virtual void OnQuit();
/**
If the viewer is running, quits it by disconnecting.
For Windows Help, the viewer will only close if no other application is using it.
*/
- virtual bool Quit();
+ virtual bool Quit() = 0;
/**
- For wxHtmlHelpController, the title is set (with %s indicating the
- page title) and also the size and position of the frame if the frame is
- already open. @a newFrameEachTime is ignored.
+ Set the parameters of the frame window.
+
+ For wxHtmlHelpController, @a titleFormat specifies the title string
+ format (with @c %s being replaced by the actual page title) and @a size
+ and @a position specify the geometry of the frame.
For all other help controllers this function has no effect.
+
+ Finally, @a newFrameEachTime is always ignored currently.
*/
- virtual void SetFrameParameters(const wxString& title,
+ virtual void SetFrameParameters(const wxString& titleFormat,
const wxSize& size,
const wxPoint& pos = wxDefaultPosition,
bool newFrameEachTime = false);
@todo modernize this function with ::wxLaunchDefaultBrowser
*/
- virtual void SetViewer(const wxString& viewer, long flags);
+ virtual void SetViewer(const wxString& viewer, long flags=wxHELP_NETSCAPE);
};
+
+
+
+
+
+/**
+ @class wxHelpController
+
+ This is an alias for one of a family of help controller classes which is
+ most appropriate for the current platform.
+
+ A help controller allows an application to display help, at the contents
+ or at a particular topic, and shut the help program down on termination.
+ This avoids proliferation of many instances of the help viewer whenever the
+ user requests a different topic via the application's menus or buttons.
+
+ Typically, an application will create a help controller instance when it starts,
+ and immediately call wxHelpController::Initialize to associate a filename with it.
+ The help viewer will only get run, however, just before the first call to
+ display something.
+
+ Most help controller classes actually derive from wxHelpControllerBase and have
+ names of the form wxXXXHelpController or wxHelpControllerXXX.
+ An appropriate class is aliased to the name wxHelpController for each platform, as
+ follows:
+ - On desktop Windows, wxCHMHelpController is used (MS HTML Help).
+ - On Windows CE, wxWinceHelpController is used.
+ - On all other platforms, wxHtmlHelpController is used if wxHTML is compiled
+ into wxWidgets; otherwise wxExtHelpController is used (for invoking an
+ external browser).
+
+ The remaining help controller classes need to be named explicitly by an
+ application that wishes to make use of them.
+
+ The following help controller classes are defined:
+ - wxWinHelpController, for controlling Windows Help.
+ - wxCHMHelpController, for controlling MS HTML Help. To use this, you need to
+ set wxUSE_MS_HTML_HELP to 1 in setup.h and have the htmlhelp.h header from
+ Microsoft's HTML Help kit. (You don't need the VC++-specific htmlhelp.lib
+ because wxWidgets loads necessary DLL at runtime and so it works with all
+ compilers.)
+ - wxBestHelpController, for controlling MS HTML Help or, if Microsoft's runtime
+ is not available, wxHtmlHelpController. You need to provide @b both CHM and
+ HTB versions of the help file. For wxMSW only.
+ - wxExtHelpController, for controlling external browsers under Unix.
+ The default browser is Netscape Navigator. The 'help' sample shows its use.
+ - wxWinceHelpController, for controlling a simple @c .htm help controller for
+ Windows CE applications.
+ - wxHtmlHelpController, a sophisticated help controller using wxHTML, in a
+ similar style to the Microsoft HTML Help viewer and using some of the same
+ files. Although it has an API compatible with other help controllers, it has
+ more advanced features, so it is recommended that you use the specific API
+ for this class instead. Note that if you use .zip or .htb formats for your
+ books, you must add this line to your application initialization:
+ @code wxFileSystem::AddHandler(new wxArchiveFSHandler); @endcode
+ or nothing will be shown in your help window.
+
+ @library{wxcore}
+ @category{help}
+
+ @see wxHtmlHelpController, @ref overview_html
+*/
+class wxHelpController : public wxHelpControllerBase
+{
+public:
+ /**
+ Constructs a help instance object, but does not invoke the help viewer.
+
+ If you provide a window, it will be used by some help controller classes, such as
+ wxCHMHelpController, wxWinHelpController and wxHtmlHelpController, as the
+ parent for the help window instead of the value of wxApp::GetTopWindow.
+
+ You can also change the parent window later with SetParentWindow().
+ */
+ wxHelpController(wxWindow* parentWindow = NULL);
+};
+
+
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