\section{\class{wxLog}}\label{wxlog}
-wxLog class defines the interface for the {\it log targets} used by wxWindows
+wxLog class defines the interface for the {\it log targets} used by wxWidgets
logging functions as explained in the \helpref{wxLog overview}{wxlogoverview}.
The only situations when you need to directly use this class is when you want
to derive your own log target because the existing ones don't satisfy your
Otherwise, it is completely hidden behind the {\it wxLogXXX()} functions and
you may not even know about its existence.
-See \helpref{log overview}{wxlogoverview} for the descriptions of wxWindows
+See \helpref{log overview}{wxlogoverview} for the descriptions of wxWidgets
logging facilities.
\wxheading{Derived from}
<wx/log.h>
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
\latexignore{\rtfignore{\wxheading{Function groups}}}
-\membersection{Static functions}
+\membersection{Global functions}
The functions in this section work with and manipulate the active log target.
The \helpref{OnLog()}{wxlogonlog} is called by the {\it wxLogXXX()} functions
\helpref{Suspend}{wxlogsuspend}\\
\helpref{Resume}{wxlogresume}
-\membersection{Logging functions}
+\membersection{Logging functions}\label{loggingfunctions}
There are two functions which must be implemented by any derived class to
actually process the log messages: \helpref{DoLog}{wxlogdolog} and
There also functions to support message buffering. Why are they needed?
Some of wxLog implementations, most notably the standard wxLogGui class,
buffer the messages (for example, to avoid showing the user a zillion of modal
-message boxes one after another - which would be really annoying).
+message boxes one after another -- which would be really annoying).
\helpref{Flush()}{wxlogflush} shows them all and clears the buffer contents.
-Although this function doesn't do anything if the buffer is already empty,
-\helpref{HasPendingMessages()}{wxloghaspendingmessages} is also provided which
-allows to explicitly verify it.
+This function doesn't do anything if the buffer is already empty.
\helpref{Flush}{wxlogflush}\\
-\helpref{FlushActive}{wxlogflushactive}\\
-\helpref{HasPendingMessages}{wxloghaspendingmessages}
+\helpref{FlushActive}{wxlogflushactive}
\membersection{Customization}\label{wxlogcustomization}
\helpref{SetTimestamp}{wxlogsettimestamp}\\
\helpref{GetTimestamp}{wxloggettimestamp}\\
\helpref{SetTraceMask}{wxlogsettracemask}\\
-\helpref{GetTraceMask}{wxloggettracemask}
+\helpref{GetTraceMask}{wxloggettracemask}\\
+\helpref{SetRepetitionCounting}{wxlogsetrepetitioncounting}\\
+\helpref{GetRepetitionCounting}{wxloggetrepetitioncounting}
%%%%% MEMBERS HERE %%%%%
\helponly{\insertatlevel{2}{
\helpref{wxLogTrace}{wxlogtrace}.
\wxheading{See also}
+
\helpref{RemoveTraceMask}{wxlogremovetracemask}
\helpref{GetTraceMasks}{wxloggettracemasks}
\helpref{AddTraceMask}{wxlogaddtracemask}.
\wxheading{See also}
+
\helpref{RemoveTraceMask}{wxlogremovetracemask}
\membersection{wxLog::GetTraceMasks}\label{wxloggettracemasks}
-\func{static const wxArrayString &}{GetTraceMasks}{\void}
+\func{static const wxArrayString \&}{GetTraceMasks}{\void}
Returns the currently allowed list of string trace masks.
\wxheading{See also}
+
\helpref{AddTraceMask}{wxlogaddtracemask}.
\membersection{wxLog::OnLog}\label{wxlogonlog}
-\func{static void}{OnLog}{\param{wxLogLevel }{ level}, \param{const char * }{ message}}
+\func{static void}{OnLog}{\param{wxLogLevel }{ level}, \param{const wxString\& }{ message}}
Forwards the message at specified level to the {\it DoLog()} function of the
active log target if there is any, does nothing otherwise.
\func{static wxLog *}{SetActiveTarget}{\param{wxLog * }{ logtarget}}
Sets the specified log target as the active one. Returns the pointer to the
-previous active log target (may be NULL).
+previous active log target (may be NULL). To suppress logging use a new
+instance of wxLogNull not NULL. If the active log target is set to NULL a
+new default log target will be created when logging occurs.
\membersection{wxLog::Suspend}\label{wxlogsuspend}
called (the standard GUI log target only shows the log dialog when it is
flushed, so Suspend() works as expected with it).
-\wxheading{See also:}
+\wxheading{See also}
\helpref{Resume}{wxlogresume},\\
\helpref{wxLogNull}{wxlogoverview}
\membersection{wxLog::DoLog}\label{wxlogdolog}
-\func{virtual void}{DoLog}{\param{wxLogLevel }{level}, \param{const wxChar }{*msg}, \param{time\_t }{timestamp}}
+\func{virtual void}{DoLog}{\param{wxLogLevel }{level}, \param{const wxString\& }{msg}, \param{time\_t }{timestamp}}
Called to process the message of the specified severity. {\it msg} is the text
of the message as specified in the call of {\it wxLogXXX()} function which
\membersection{wxLog::DoLogString}\label{wxlogdologstring}
-\func{virtual void}{DoLogString}{\param{const wxChar }{*msg}, \param{time\_t }{timestamp}}
+\func{virtual void}{DoLogString}{\param{const wxString\& }{msg}, \param{time\_t }{timestamp}}
-Called to log the specified string. The timestamp is already included into the
+Called to log the specified string. The timestamp is already included in the
string but still passed to this function.
A simple implementation may just send the string to {\tt stdout} or, better,
Flushes the current log target if any, does nothing if there is none.
-See also:
+\wxheading{See also}
\helpref{Flush}{wxlogflush}
-\membersection{wxLog::HasPendingMessages}\label{wxloghaspendingmessages}
-
-\constfunc{bool}{HasPendingMessages}{\void}
-
-Returns true if there are any messages in the buffer (not yet shown to the
-user). (Almost) for internal use only.
-
\membersection{wxLog::SetVerbose}\label{wxlogsetverbose}
-\func{static void}{SetVerbose}{\param{bool }{ verbose = TRUE}}
+\func{static void}{SetVerbose}{\param{bool }{ verbose = true}}
Activates or deactivates verbose mode in which the verbose messages are
logged as the normal ones instead of being silently dropped.
Returns the current log level limit.
+\membersection{wxLog::SetRepetitionCounting}\label{wxlogsetrepetitioncounting}
+
+\func{static void}{SetRepetitionCounting}{\param{bool }{ repetCounting = true}}
+
+Enables logging mode in which a log message is logged once, and in case exactly
+the same message successively repeats one or more times, only the number of
+repetitions is logged.
+
+\membersection{wxLog::GetRepetitionCounting}\label{wxloggetrepetitioncounting}
+
+\func{static bool}{GetRepetitionCounting}{\void}
+
+Returns whether the repetition counting mode is enabled.
+
+
\membersection{wxLog::SetTimestamp}\label{wxlogsettimestamp}
-\func{void}{SetTimestamp}{\param{const char * }{ format}}
+\func{static void}{SetTimestamp}{\param{const wxString\&}{ format}}
Sets the timestamp format prepended by the default log targets to all
messages. The string may contain any normal characters as well as \%
prefixed format specificators, see {\it strftime()} manual for details.
-Passing a NULL value (not empty string) to this function disables message timestamping.
+Passing an empty string to this function disables message time stamping.
+
+\membersection{wxLog::DisableTimestamp}\label{wxlogdisabletimestamp}
+
+\func{void}{SetTimestamp}{\param{const wxString\&}{ format}}
+
+Disables time stamping of the log messages.
+
+\newsince{2.9}
\membersection{wxLog::GetTimestamp}\label{wxloggettimestamp}
-\constfunc{const char *}{GetTimestamp}{\void}
+\func{static const wxString\&}{GetTimestamp}{\void}
Returns the current timestamp format string.
\membersection{wxLog::GetTraceMask}\label{wxloggettracemask}
+\func{static wxTraceMask}{GetTraceMask}{\void}
+
Returns the current trace mask, see \helpref{Customization}{wxlogcustomization} section
for details.
\membersection{wxLog::IsAllowedTraceMask}\label{wxlogisallowedtracemask}
-\func{static bool}{IsAllowedTraceMask}{\param{const wxChar *}{mask}}
+\func{static bool}{IsAllowedTraceMask}{\param{const wxString\& }{mask}}
-Returns TRUE if the {\it mask} is one of allowed masks for
+Returns true if the {\it mask} is one of allowed masks for
\helpref{wxLogTrace}{wxlogtrace}.
See also: \helpref{AddTraceMask}{wxlogaddtracemask},
<wx/log.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogChain::wxLogChain}\label{wxlogchainwxlogchain}
+\membersection{wxLogChain::wxLogChain}\label{wxlogchainctor}
\func{}{wxLogChain}{\param{wxLog *}{logger}}
Sets the specified {\tt logger} (which may be {\tt NULL}) as the default log
target but the log messages are also passed to the previous log target if any.
-\membersection{wxLogChain::\destruct{wxLogChain}}
+\membersection{wxLogChain::\destruct{wxLogChain}}\label{wxlogchaindtor}
\func{}{\destruct{wxLogChain}}{\void}
Destroys the previous log target.
+\membersection{wxLogChain::DetachOldLog}\label{wxlogchaindetacholdlog}
+
+\func{void}{DetachOldLog}{\void}
+
+Detaches the old log target so it won't be destroyed when the wxLogChain object
+is destroyed.
+
\membersection{wxLogChain::GetOldLog}\label{wxlogchaingetoldlog}
\constfunc{wxLog *}{GetOldLog}{\void}
\constfunc{bool}{IsPassingMessages}{\void}
-Returns {\tt TRUE} if the messages are passed to the previously active log
-target (default) or {\tt FALSE} if \helpref{PassMessages}{wxlogchainpassmessages}
+Returns {\tt true} if the messages are passed to the previously active log
+target (default) or {\tt false} if \helpref{PassMessages}{wxlogchainpassmessages}
had been called.
\membersection{wxLogChain::PassMessages}\label{wxlogchainpassmessages}
\func{void}{PassMessages}{\param{bool }{passMessages}}
By default, the log messages are passed to the previously active log target.
-Calling this function with {\tt FALSE} parameter disables this behaviour
+Calling this function with {\tt false} parameter disables this behaviour
(presumably temporarily, as you shouldn't use wxLogChain at all otherwise) and
it can be reenabled by calling it again with {\it passMessages} set to {\tt
-TRUE}.
+true}.
\membersection{wxLogChain::SetLog}\label{wxlogchainsetlog}
\func{void}{SetLog}{\param{wxLog *}{logger}}
Sets another log target to use (may be {\tt NULL}). The log target specified
-in the \helpref{constructor}{wxlogchainwxlogchain} or in a previous call to
+in the \helpref{constructor}{wxlogchainctor} or in a previous call to
this function is deleted.
This doesn't change the old log target value (the one the messages are
\section{\class{wxLogGui}}\label{wxloggui}
-This is the default log target for the GUI wxWindows applications. It is passed
+This is the default log target for the GUI wxWidgets applications. It is passed
to \helpref{wxLog::SetActiveTarget}{wxlogsetactivetarget} at the program
-startup and is deleted by wxWindows during the program shut down.
+startup and is deleted by wxWidgets during the program shut down.
\wxheading{Derived from}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogGui::wxLogGui}
+\membersection{wxLogGui::wxLogGui}\label{wxlogguictor}
\func{}{wxLogGui}{\void}
This class allows to temporarily suspend logging. All calls to the log
functions during the life time of an object of this class are just ignored.
-In particular, it can be used to suppress the log messages given by wxWindows
+In particular, it can be used to suppress the log messages given by wxWidgets
itself but it should be noted that it is rarely the best way to cope with this
problem as {\bf all} log messages are suppressed, even if they indicate a
completely different error than the one the programmer wanted to suppress.
wxLogMessage("..."); // ok
\end{verbatim}
-}
+}%
would be better written as:
...
}
\end{verbatim}
-}
+}%
\wxheading{Derived from}
<wx/log.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogNull::wxLogNull}
+\membersection{wxLogNull::wxLogNull}\label{wxlognullctor}
\func{}{wxLogNull}{\void}
Suspends logging.
-\membersection{wxLogNull::\destruct{wxLogNull}}
+\membersection{wxLogNull::\destruct{wxLogNull}}\label{wxlognulldtor}
Resumes logging.
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% wxLogPassThrough %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% wxLogInterposer %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\section{\class{wxLogPassThrough}}\label{wxlogpassthrough}
+\section{\class{wxLogInterposer}}\label{wxloginterposer}
A special version of \helpref{wxLogChain}{wxlogchain} which uses itself as the
-new log target. Maybe more clearly, it means that this is a log target which
-forwards the log messages to the previously installed one in addition to
+new log target. It forwards log messages to the previously installed one in addition to
processing them itself.
Unlike \helpref{wxLogChain}{wxlogchain} which is usually used directly as is,
this class must be derived from to implement \helpref{DoLog}{wxlogdolog}
and/or \helpref{DoLogString}{wxlogdologstring} methods.
+wxLogInterposer destroys the previous log target in its destructor. If you
+don't want this to happen, use wxLogInterposerTemp instead.
+
\wxheading{Derived from}
-\helpref{wxLogChain}{wxlogchain}
+\helpref{wxLogChain}{wxlogchain}\\
+\helpref{wxLog}{wxlog}
\wxheading{Include files}
<wx/log.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogPassThrough::wxLogPassThrough}\label{wxlogpassthroughctor}
+\membersection{wxLogInterposer::wxLogInterposer}\label{wxloginterposerctor}
-Default ctor installs this object as the current active log target.
+The default constructor installs this object as the current active log target.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% wxLogInterposerTemp %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+\section{\class{wxLogInterposerTemp}}\label{wxloginterposertemp}
+
+A special version of \helpref{wxLogChain}{wxlogchain} which uses itself as the
+new log target. It forwards log messages to the previously installed one in addition to
+processing them itself. Unlike \helpref{wxLogInterposer}{wxloginterposer}, it doesn't
+delete the old target which means it can be used to temporarily redirect log output.
+
+As per wxLogInterposer, this class must be derived from to implement \helpref{DoLog}{wxlogdolog}
+and/or \helpref{DoLogString}{wxlogdologstring} methods.
+
+\wxheading{Derived from}
+
+\helpref{wxLogChain}{wxlogchain}\\
+\helpref{wxLog}{wxlog}
+
+\wxheading{Include files}
+
+<wx/log.h>
+
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
+\latexignore{\rtfignore{\wxheading{Members}}}
+
+\membersection{wxLogInterposerTemp::wxLogInterposerTemp}\label{wxloginterposertempctor}
+
+The default constructor installs this object as the current active log target.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% wxLogStderr %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
This class can be used to redirect the log messages to a C file stream (not to
be confused with C++ streams). It is the default log target for the non-GUI
-wxWindows applications which send all the output to {\tt stderr}.
+wxWidgets applications which send all the output to {\tt stderr}.
\wxheading{Derived from}
<wx/log.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\wxheading{See also}
\helpref{wxLogStream}{wxlogstream}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogStderr::wxLogStderr}
+\membersection{wxLogStderr::wxLogStderr}\label{wxlogstderrctor}
\func{}{wxLogStderr}{\param{FILE }{*fp = NULL}}
This class can be used to redirect the log messages to a C++ stream.
-Please note that this class is only available if wxWindows was compiled with
+Please note that this class is only available if wxWidgets was compiled with
the standard iostream library support ({\tt wxUSE\_STD\_IOSTREAM} must be on).
\wxheading{Derived from}
<wx/log.h>
+\wxheading{Library}
+
+\helpref{wxBase}{librarieslist}
+
\wxheading{See also}
\helpref{wxLogStderr}{wxlogstderr},\\
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogStream::wxLogStream}
+\membersection{wxLogStream::wxLogStream}\label{wxlogstreamctor}
\func{}{wxLogStream}{\param{std::ostream }{*ostr = NULL}}
\wxheading{See also}
-\helpref{wxLogTextCtrl}{wxlogtextctrl},\\
+\helpref{wxTextCtrl}{wxtextctrl},\\
\helpref{wxStreamToTextRedirector}{wxstreamtotextredirector}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogTextCtrl::wxLogTextCtrl}
+\membersection{wxLogTextCtrl::wxLogTextCtrl}\label{wxlogtextctrlctor}
\func{}{wxLogTextCtrl}{\param{wxTextCtrl }{*textctrl}}
\wxheading{Derived from}
-\helpref{wxLogPassThrough}{wxlogpassthrough}
+\helpref{wxLogInterposer}{wxloginterposer}\\
+\helpref{wxLogChain}{wxlogchain}\\
+\helpref{wxLog}{wxlog}
\wxheading{Include files}
\latexignore{\rtfignore{\wxheading{Members}}}
-\membersection{wxLogWindow::wxLogWindow}
+\membersection{wxLogWindow::wxLogWindow}\label{wxlogwindowctor}
-\func{}{wxLogWindow}{\param{wxFrame }{*parent}, \param{const wxChar }{*title}, \param{bool }{show = {\tt TRUE}}, \param{bool }{passToOld = {\tt TRUE}}}
+\func{}{wxLogWindow}{\param{wxFrame }{*parent}, \param{const wxChar }{*title}, \param{bool }{show = {\tt true}}, \param{bool }{passToOld = {\tt true}}}
Creates the log frame window and starts collecting the messages in it.
\docparam{title}{The title for the log frame}
-\docparam{show}{{\tt TRUE} to show the frame initially (default), otherwise
+\docparam{show}{{\tt true} to show the frame initially (default), otherwise
\helpref{wxLogWindow::Show}{wxlogwindowshow} must be called later.}
-\docparam{passToOld}{{\tt TRUE} to process the log messages normally in addition to
-logging them in the log frame (default), {\tt FALSE} to only log them in the
+\docparam{passToOld}{{\tt true} to process the log messages normally in addition to
+logging them in the log frame (default), {\tt false} to only log them in the
log frame.}
\membersection{wxLogWindow::Show}\label{wxlogwindowshow}
-\func{void}{Show}{\param{bool }{show = {\tt TRUE}}}
+\func{void}{Show}{\param{bool }{show = {\tt true}}}
Shows or hides the frame.
-\membersection{wxLogWindow::GetFrame}
+\membersection{wxLogWindow::GetFrame}\label{wxlogwindowgetframe}
\constfunc{wxFrame *}{GetFrame}{\void}
Returns the associated log frame window. This may be used to position or resize
it but use \helpref{wxLogWindow::Show}{wxlogwindowshow} to show or hide it.
-\membersection{wxLogWindow::OnFrameCreate}
+\membersection{wxLogWindow::OnFrameCreate}\label{wxlogwindowonframecreate}
\func{virtual void}{OnFrameCreate}{\param{wxFrame }{*frame}}
\membersection{wxLogWindow::OnFrameClose}\label{wxlogwindowonframeclose}
-\func{virtual void}{OnFrameClose}{\param{wxFrame }{*frame}}
+\func{virtual bool}{OnFrameClose}{\param{wxFrame }{*frame}}
Called if the user closes the window interactively, will not be
called if it is destroyed for another reason (such as when program
exits).
-Return {\tt TRUE} from here to allow the frame to close, {\tt FALSE} to
+Return {\tt true} from here to allow the frame to close, {\tt false} to
prevent this from happening.
\wxheading{See also}
projects / wxWidgets.git / blobdiff