]> git.saurik.com Git - wxWidgets.git/blobdiff - docs/latex/wx/stream.tex
Correct wxObjectDataPtr<> assignment from *T to not increase the ref count
[wxWidgets.git] / docs / latex / wx / stream.tex
index 90cd8c8840dcf98c3ee991ca0928156894bdae43..420a2c04db2921672986daa7638f560758b1a3b9 100644 (file)
@@ -16,14 +16,9 @@ None
 
 \helpref{wxStreamBase}{wxstreambase}
 
 
 \helpref{wxStreamBase}{wxstreambase}
 
-% ---------------------------------------------------------------------------
-% Members
-% ---------------------------------------------------------------------------
 \latexignore{\rtfignore{\wxheading{Members}}}
 
 \latexignore{\rtfignore{\wxheading{Members}}}
 
-% -----------
-% ctor & dtor
-% -----------
+
 \membersection{wxStreamBuffer::wxStreamBuffer}\label{wxstreambufferctor}
 
 \func{}{wxStreamBuffer}{\param{wxStreamBase\&}{ stream}, \param{BufMode}{ mode}}
 \membersection{wxStreamBuffer::wxStreamBuffer}\label{wxstreambufferctor}
 
 \func{}{wxStreamBuffer}{\param{wxStreamBase\&}{ stream}, \param{BufMode}{ mode}}
@@ -72,6 +67,7 @@ program.
 
 \helpref{wxStreamBuffer:SetBufferIO}{wxstreambuffersetbufferio}
 
 
 \helpref{wxStreamBuffer:SetBufferIO}{wxstreambuffersetbufferio}
 
+
 \membersection{wxStreamBuffer::\destruct{wxStreamBuffer}}\label{wxstreambufferdtor}
 
 \func{}{wxStreamBuffer}{\destruct{wxStreamBuffer}}
 \membersection{wxStreamBuffer::\destruct{wxStreamBuffer}}\label{wxstreambufferdtor}
 
 \func{}{wxStreamBuffer}{\destruct{wxStreamBuffer}}
@@ -79,43 +75,69 @@ program.
 Destructor. It finalizes all IO calls and frees all internal buffers if
 necessary.
 
 Destructor. It finalizes all IO calls and frees all internal buffers if
 necessary.
 
-% -----------
-% Filtered IO
-% -----------
-\membersection{wxStreamBuffer::Read}\label{wxstreambufferread}
 
 
-\func{size\_t}{Read}{\param{void *}{buffer}, \param{size\_t }{size}}
+\membersection{wxStreamBuffer::FillBuffer}\label{wxstreambufferfillbuffer}
 
 
-Reads a block of the specified {\it size} and stores the data in {\it buffer}.
-This function tries to read from the buffer first and if more data has been
-requested, reads more data from the associated stream and updates the buffer
-accordingly until all requested data is read.
+\func{bool}{FillBuffer}{\void}
 
 
-\wxheading{Return value}
+Fill the IO buffer.
 
 
-It returns the size of the data read. If the returned size is different of the specified 
-{\it size}, an error has occurred and should be tested using 
-\helpref{GetLastError}{wxstreambasegetlasterror}.
 
 
-\func{size\_t}{Read}{\param{wxStreamBuffer *}{buffer}}
+\membersection{wxStreamBuffer::Fixed}\label{wxstreambufferfixed}
 
 
-Copies data to {\it buffer}. The function returns when {\it buffer} is full or when there isn't
-any more data in the current buffer.
+\func{void}{Fixed}{\param{bool}{ fixed}}
+
+Toggles the fixed flag. Usually this flag is toggled at the same time as 
+{\it flushable}. This flag allows (when it has the false value) or forbids
+(when it has the true value) the stream buffer to resize dynamically the IO buffer.
 
 \wxheading{See also}
 
 
 \wxheading{See also}
 
-\helpref{wxStreamBuffer::Write}{wxstreambufferwrite}
+\helpref{wxStreamBuffer::SetBufferIO}{wxstreambuffersetbufferio}
 
 
-\membersection{wxStreamBuffer::Write}\label{wxstreambufferwrite}
 
 
-\func{size\_t}{Write}{\param{const void *}{buffer}, \param{size\_t }{size}}
+\membersection{wxStreamBuffer::Flushable}\label{wxstreambufferflushable}
 
 
-Writes a block of the specified {\it size} using data of {\it buffer}. The data
-are cached in a buffer before being sent in one block to the stream.
+\func{void}{Flushable}{\param{bool}{ flushable}}
 
 
-\func{size\_t}{Write}{\param{wxStreamBuffer *}{buffer}}
+Toggles the flushable flag. If {\it flushable} is disabled, no data are sent
+to the parent stream.
+
+
+\membersection{wxStreamBuffer::FlushBuffer}\label{wxstreambufferflushbuffer}
+
+\func{bool}{FlushBuffer}{\void}
+
+Flushes the IO buffer.
+
+
+\membersection{wxStreamBuffer::GetBufferEnd}\label{wxstreambuffergetbufferend}
+
+\constfunc{void *}{GetBufferEnd}{\void}
+
+Returns a pointer on the end of the stream buffer.
+
+
+\membersection{wxStreamBuffer::GetBufferPos}\label{wxstreambuffergetbufferpos}
+
+\constfunc{void *}{GetBufferPos}{\void}
+
+Returns a pointer on the current position of the stream buffer.
+
+
+\membersection{wxStreamBuffer::GetBufferSize}\label{wxstreambuffergetbuffersize}
+
+\constfunc{size\_t}{GetBufferSize}{\void}
+
+Returns the size of the buffer.
+
+
+\membersection{wxStreamBuffer::GetBufferStart}\label{wxstreambuffergetbufferstart}
+
+\constfunc{void *}{GetBufferStart}{\void}
+
+Returns a pointer on the start of the stream buffer.
 
 
-See \helpref{Read}{wxstreambufferread}.
 
 \membersection{wxStreamBuffer::GetChar}\label{wxstreambuffergetchar}
 
 
 \membersection{wxStreamBuffer::GetChar}\label{wxstreambuffergetchar}
 
@@ -131,6 +153,28 @@ You aren't directly notified if an error occurred during the IO call.
 
 \helpref{wxStreamBuffer::Read}{wxstreambufferread}
 
 
 \helpref{wxStreamBuffer::Read}{wxstreambufferread}
 
+
+\membersection{wxStreamBuffer::GetDataLeft}\label{wxstreambuffergetdataleft}
+
+\func{size\_t}{GetDataLeft}{\void}
+
+Returns the amount of available data in the buffer.
+
+
+\membersection{wxStreamBuffer::GetIntPosition}\label{wxstreambuffergetintposition}
+
+\constfunc{off\_t}{GetIntPosition}{\void}
+
+Returns the current position (counted in bytes) in the stream buffer.
+
+
+\membersection{wxStreamBuffer::GetLastAccess}\label{wxstreambuffergetlastaccess}
+
+\constfunc{size\_t}{GetLastAccess}{\void}
+
+Returns the amount of bytes read during the last IO call to the parent stream.
+
+
 \membersection{wxStreamBuffer::PutChar}\label{wxstreambufferputchar}
 
 \func{void}{PutChar}{\param{char }{c}}
 \membersection{wxStreamBuffer::PutChar}\label{wxstreambufferputchar}
 
 \func{void}{PutChar}{\param{char }{c}}
@@ -145,19 +189,38 @@ You aren't directly notified if an error occurred during the IO call.
 
 \helpref{wxStreamBuffer::Read}{wxstreambufferwrite}
 
 
 \helpref{wxStreamBuffer::Read}{wxstreambufferwrite}
 
-\membersection{wxStreamBuffer::Tell}\label{wxstreambuffertell}
 
 
-\constfunc{off\_t}{Tell}{\void}
+\membersection{wxStreamBuffer::Read}\label{wxstreambufferread}
 
 
-Gets the current position in the stream. This position is calculated from
-the {\it real} position in the stream and from the internal buffer position: so
-it gives you the position in the {\it real} stream counted from the start of
-the stream.
+\func{size\_t}{Read}{\param{void *}{buffer}, \param{size\_t }{size}}
+
+Reads a block of the specified {\it size} and stores the data in {\it buffer}.
+This function tries to read from the buffer first and if more data has been
+requested, reads more data from the associated stream and updates the buffer
+accordingly until all requested data is read.
 
 \wxheading{Return value}
 
 
 \wxheading{Return value}
 
-Returns the current position in the stream if possible, wxInvalidOffset in the
-other case.
+It returns the size of the data read. If the returned size is different of the specified 
+{\it size}, an error has occurred and should be tested using 
+\helpref{GetLastError}{wxstreambasegetlasterror}.
+
+\func{size\_t}{Read}{\param{wxStreamBuffer *}{buffer}}
+
+Copies data to {\it buffer}. The function returns when {\it buffer} is full or when there isn't
+any more data in the current buffer.
+
+\wxheading{See also}
+
+\helpref{wxStreamBuffer::Write}{wxstreambufferwrite}
+
+
+\membersection{wxStreamBuffer::ResetBuffer}\label{wxstreambufferresetbuffer}
+
+\func{void}{ResetBuffer}{\void}
+
+Resets to the initial state variables concerning the buffer.
+
 
 \membersection{wxStreamBuffer::Seek}\label{wxstreambufferseek}
 
 
 \membersection{wxStreamBuffer::Seek}\label{wxstreambufferseek}
 
@@ -179,25 +242,6 @@ Changes the current position.
 Upon successful completion, it returns the new offset as measured in bytes from
 the beginning of the stream. Otherwise, it returns wxInvalidOffset.
 
 Upon successful completion, it returns the new offset as measured in bytes from
 the beginning of the stream. Otherwise, it returns wxInvalidOffset.
 
-% --------------
-% Buffer control
-% --------------
-\membersection{wxStreamBuffer::ResetBuffer}\label{wxstreambufferresetbuffer}
-
-\func{void}{ResetBuffer}{\void}
-
-Resets to the initial state variables concerning the buffer.
-
-
-\membersection{wxStreamBuffer::Truncate}\label{wxstreambuffertruncate}
-
-\func{void}{Truncate}{\void}
-
-Truncates the buffer to the current position.
-
-Note: Truncate() cannot be used to enlarge the buffer. This is
-usually not needed since the buffer expands automatically.
-
 
 \membersection{wxStreamBuffer::SetBufferIO}\label{wxstreambuffersetbufferio}
 
 
 \membersection{wxStreamBuffer::SetBufferIO}\label{wxstreambuffersetbufferio}
 
@@ -239,29 +283,6 @@ The created IO buffer is growable by the object.
 \helpref{wxStreamBuffer::Fixed}{wxstreambufferfixed}\\
 \helpref{wxStreamBuffer::Flushable}{wxstreambufferflushable}
 
 \helpref{wxStreamBuffer::Fixed}{wxstreambufferfixed}\\
 \helpref{wxStreamBuffer::Flushable}{wxstreambufferflushable}
 
-\membersection{wxStreamBuffer::GetBufferStart}\label{wxstreambuffergetbufferstart}
-
-\constfunc{void *}{GetBufferStart}{\void}
-
-Returns a pointer on the start of the stream buffer.
-
-\membersection{wxStreamBuffer::GetBufferEnd}\label{wxstreambuffergetbufferend}
-
-\constfunc{void *}{GetBufferEnd}{\void}
-
-Returns a pointer on the end of the stream buffer.
-
-\membersection{wxStreamBuffer::GetBufferPos}\label{wxstreambuffergetbufferpos}
-
-\constfunc{void *}{GetBufferPos}{\void}
-
-Returns a pointer on the current position of the stream buffer.
-
-\membersection{wxStreamBuffer::GetIntPosition}\label{wxstreambuffergetintposition}
-
-\constfunc{off\_t}{GetIntPosition}{\void}
-
-Returns the current position (counted in bytes) in the stream buffer.
 
 \membersection{wxStreamBuffer::SetIntPosition}\label{wxstreambuffersetintposition}
 
 
 \membersection{wxStreamBuffer::SetIntPosition}\label{wxstreambuffersetintposition}
 
@@ -274,61 +295,47 @@ Sets the current position (in bytes) in the stream buffer.
 Since it is a very low-level function, there is no check on the position:
 specifying an invalid position can induce unexpected results.
 
 Since it is a very low-level function, there is no check on the position:
 specifying an invalid position can induce unexpected results.
 
-\membersection{wxStreamBuffer::GetLastAccess}\label{wxstreambuffergetlastaccess}
-
-\constfunc{size\_t}{GetLastAccess}{\void}
-
-Returns the amount of bytes read during the last IO call to the parent stream.
-
-\membersection{wxStreamBuffer::Fixed}\label{wxstreambufferfixed}
-
-\func{void}{Fixed}{\param{bool}{ fixed}}
 
 
-Toggles the fixed flag. Usually this flag is toggled at the same time as 
-{\it flushable}. This flag allows (when it has the false value) or forbids
-(when it has the true value) the stream buffer to resize dynamically the IO buffer.
-
-\wxheading{See also}
+\membersection{wxStreamBuffer::Stream}\label{wxstreambufferstream}
 
 
-\helpref{wxStreamBuffer::SetBufferIO}{wxstreambuffersetbufferio}
+\func{wxStreamBase*}{Stream}{\void}
 
 
-\membersection{wxStreamBuffer::Flushable}\label{wxstreambufferflushable}
+Returns the parent stream of the stream buffer.
 
 
-\func{void}{Flushable}{\param{bool}{ flushable}}
 
 
-Toggles the flushable flag. If {\it flushable} is disabled, no data are sent
-to the parent stream.
+\membersection{wxStreamBuffer::Tell}\label{wxstreambuffertell}
 
 
-\membersection{wxStreamBuffer::FlushBuffer}\label{wxstreambufferflushbuffer}
+\constfunc{off\_t}{Tell}{\void}
 
 
-\func{bool}{FlushBuffer}{\void}
+Gets the current position in the stream. This position is calculated from
+the {\it real} position in the stream and from the internal buffer position: so
+it gives you the position in the {\it real} stream counted from the start of
+the stream.
 
 
-Flushes the IO buffer.
+\wxheading{Return value}
 
 
-\membersection{wxStreamBuffer::FillBuffer}\label{wxstreambufferfillbuffer}
+Returns the current position in the stream if possible, wxInvalidOffset in the
+other case.
 
 
-\func{bool}{FillBuffer}{\void}
 
 
-Fill the IO buffer.
+\membersection{wxStreamBuffer::Truncate}\label{wxstreambuffertruncate}
 
 
-\membersection{wxStreamBuffer::GetBufferSize}\label{wxstreambuffergetbuffersize}
+\func{void}{Truncate}{\void}
 
 
-\constfunc{size\_t}{GetBufferSize}{\void}
+Truncates the buffer to the current position.
 
 
-Returns the size of the buffer.
+Note: Truncate() cannot be used to enlarge the buffer. This is
+usually not needed since the buffer expands automatically.
 
 
-\membersection{wxStreamBuffer::GetDataLeft}\label{wxstreambuffergetdataleft}
 
 
-\func{size\_t}{GetDataLeft}{\void}
+\membersection{wxStreamBuffer::Write}\label{wxstreambufferwrite}
 
 
-Returns the amount of available data in the buffer.
+\func{size\_t}{Write}{\param{const void *}{buffer}, \param{size\_t }{size}}
 
 
-% --------------
-% Administration
-% --------------
-\membersection{wxStreamBuffer::Stream}\label{wxstreambufferstream}
+Writes a block of the specified {\it size} using data of {\it buffer}. The data
+are cached in a buffer before being sent in one block to the stream.
 
 
-\func{wxStreamBase*}{Stream}{\void}
+\func{size\_t}{Write}{\param{wxStreamBuffer *}{buffer}}
 
 
-Returns the parent stream of the stream buffer.
+See \helpref{Read}{wxstreambufferread}.