// Name: help.h
// Purpose: interface of wxHelpController
// Author: wxWidgets team
-// RCS-ID: $Id$
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
+
+#define wxHELP_NETSCAPE 1
+
+
/**
Help search modes for wxHelpController::KeywordSearch().
*/
};
/**
- @class wxHelpController
+ @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.
- @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.
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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