// Purpose: interface of wxApp
// Author: wxWidgets team
// RCS-ID: $Id$
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
objects in the application (see wxAppConsole::FilterEvent)
@li implement Apple-specific event handlers (see wxAppConsole::MacXXX functions)
- You should use the macro IMPLEMENT_APP(appClass) in your application
+ You should use the macro wxIMPLEMENT_APP(appClass) in your application
implementation file to tell wxWidgets how to create an instance of your
application class.
- Use DECLARE_APP(appClass) in a header file if you want the ::wxGetApp() function
+ Use wxDECLARE_APP(appClass) in a header file if you want the ::wxGetApp() function
(which returns a reference to your application object) to be visible to other
files.
wxEventFunction func,
wxEvent& event) const;
+ /**
+ Returns @true if the application is using an event loop.
+
+ This function always returns @true for the GUI applications which
+ must use an event loop but by default only returns @true for the
+ console programs if an event loop is already running as it can't know
+ whether one will be created in the future.
+
+ Thus, it only makes sense to override it in console applications which
+ do use an event loop, to return @true instead of checking if there is a
+ currently active event loop.
+ */
+ virtual bool UsesEventLoop() const;
+
//@}
/**
Process all pending events; it is necessary to call this function to
- process posted events.
+ process events posted with wxEvtHandler::QueueEvent or wxEvtHandler::AddPendingEvent.
- This happens during each event loop iteration in GUI mode but
+ This happens during each event loop iteration (see wxEventLoopBase) in GUI mode but
it may be also called directly.
+
+ Note that this function does not only process the pending events for the wxApp object
+ itself (which derives from wxEvtHandler) but also the pending events for @e any
+ event handler of this application.
+
+ This function will immediately return and do nothing if SuspendProcessingOfPendingEvents()
+ was called.
*/
virtual void ProcessPendingEvents();
+ /**
+ Deletes the pending events of all wxEvtHandlers of this application.
+
+ See wxEvtHandler::DeletePendingEvents() for warnings about deleting the pending
+ events.
+ */
+ void DeletePendingEvents();
+
/**
Returns @true if there are pending events on the internal pending event list.
+
+ Whenever wxEvtHandler::QueueEvent or wxEvtHandler::AddPendingEvent() are
+ called (not only for wxApp itself, but for any event handler of the application!),
+ the internal wxApp's list of handlers with pending events is updated and this
+ function will return true.
*/
bool HasPendingEvents() const;
//@}
+ /**
+ Delayed objects destruction.
+
+ In applications using events it may be unsafe for an event handler to
+ delete the object which generated the event because more events may be
+ still pending for the same object. In this case the handler may call
+ ScheduleForDestruction() instead.
+ */
+ //@{
+
+ /**
+ Schedule the object for destruction in the near future.
+
+ Notice that if the application is not using an event loop, i.e. if
+ UsesEventLoop() returns @false, this method will simply delete the
+ object immediately.
+
+ Examples of using this function inside wxWidgets itself include
+ deleting the top level windows when they are closed and sockets when
+ they are disconnected.
+ */
+ void ScheduleForDestruction(wxObject *object);
+
+ /**
+ Check if the object had been scheduled for destruction with
+ ScheduleForDestruction().
+
+ This function may be useful as an optimization to avoid doing something
+ with an object which will be soon destroyed in any case.
+ */
+ bool IsScheduledForDestruction(wxObject *object) const;
+
+ //@}
+
/**
Allows external code to modify global ::wxTheApp, but you should really
Called in response of an "open-application" Apple event.
Override this to create a new document in your app.
- @onlyfor{wxmac}
+ @onlyfor{wxosx}
*/
virtual void MacNewFile();
user double clicked on it or if the document file was dropped on either the
running application or the application icon in Finder.
- @onlyfor{wxmac}
+ @onlyfor{wxosx}
*/
virtual void MacOpenFile(const wxString& fileName);
/**
Called in response of a "get-url" Apple event.
- @onlyfor{wxmac}
+ @onlyfor{wxosx}
*/
virtual void MacOpenURL(const wxString& url);
/**
Called in response of a "print-document" Apple event.
- @onlyfor{wxmac}
+ @onlyfor{wxosx}
*/
virtual void MacPrintFile(const wxString& fileName);
/**
Called in response of a "reopen-application" Apple event.
- @onlyfor{wxmac}
+ @onlyfor{wxosx}
*/
virtual void MacReopenApp();
is that this one is meant to be shown to the user and so should be used
for the window titles, page headers and so on while the other one
should be only used internally, e.g. for the file names or
- configuration file keys. By default, returns the application name as
- returned by GetAppName() capitalized using wxString::Capitalize().
+ configuration file keys.
+
+ If the application name for display had been previously set by
+ SetAppDisplayName(), it will be returned by this function. Otherwise,
+ if SetAppName() had been called its value will be returned; also as is.
+ Finally if none was called, this function returns the program name
+ capitalized using wxString::Capitalize().
@since 2.9.0
*/
/**
Returns the application name.
- @remarks wxWidgets sets this to a reasonable default before calling
- OnInit(), but the application can reset it at will.
+ If SetAppName() had been called, returns the string passed to it.
+ Otherwise returns the program name, i.e. the value of @c argv[0] passed
+ to the @c main() function.
@see GetAppDisplayName()
*/
/**
This is used in headers to create a forward declaration of the ::wxGetApp()
- function implemented by IMPLEMENT_APP().
+ function implemented by wxIMPLEMENT_APP().
- It creates the declaration <tt>className& wxGetApp()</tt>.
+ It creates the declaration <tt>className& wxGetApp()</tt>
+ (requires a final semicolon).
@header{wx/app.h}
Example:
@code
- DECLARE_APP(MyApp)
+ wxDECLARE_APP(MyApp);
@endcode
*/
-#define DECLARE_APP( className )
+#define wxDECLARE_APP( className )
/**
This is used in the application class implementation file to make the
application class known to wxWidgets for dynamic construction.
+ Note that this macro requires a final semicolon.
@header{wx/app.h}
Example:
@code
- IMPLEMENT_APP(MyApp)
+ wxIMPLEMENT_APP(MyApp);
@endcode
- @see DECLARE_APP().
+ @see wxDECLARE_APP()
*/
-#define IMPLEMENT_APP( className )
+#define wxIMPLEMENT_APP( className )
//@}
/**
This function doesn't exist in wxWidgets but it is created by using the
- IMPLEMENT_APP() macro.
+ wxIMPLEMENT_APP() macro.
Thus, before using it anywhere but in the same module where this macro is
- used, you must make it available using DECLARE_APP().
+ used, you must make it available using wxDECLARE_APP().
The advantage of using this function compared to directly using the global
::wxTheApp pointer is that the latter is of type wxApp* and so wouldn't
//@}
+/** @addtogroup group_funcmacro_debug */
+//@{
+
+/**
+ @def wxDISABLE_DEBUG_SUPPORT()
+
+ Use this macro to disable all debugging code in release build when not
+ using wxIMPLEMENT_APP().
+
+ Currently this macro disables assert checking and debug and trace level
+ logging messages in release build (i.e. when @c NDEBUG is defined). It is
+ used by wxIMPLEMENT_APP() macro so you only need to use it explicitly if you
+ don't use this macro but initialize wxWidgets directly (e.g. calls
+ wxEntry() or wxEntryStart() itself).
+
+ If you do not want to disable debugging code even in release build of your
+ application, you can use wxSetDefaultAssertHandler() and
+ wxLog::SetLogLevel() with @c wxLOG_Max parameter to enable assertions and
+ debug logging respectively.
+
+ @see wxDISABLE_ASSERTS_IN_RELEASE_BUILD(),
+ wxDISABLE_DEBUG_LOGGING_IN_RELEASE_BUILD(),
+ @ref overview_debugging
+
+ @since 2.9.1
+
+ @header{wx/app.h}
+ */
+#define wxDISABLE_DEBUG_SUPPORT() \
+ wxDISABLE_ASSERTS_IN_RELEASE_BUILD(); \
+ wxDISABLE_DEBUG_LOGGING_IN_RELEASE_BUILD()
+
+//@}
+
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