X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d7eee191c55687785a2be927fd387d10514cdf1b..a826c31586bc245a584c449c817bca3877e7e16c:/docs/latex/wx/text.tex

diff --git a/docs/latex/wx/text.tex b/docs/latex/wx/text.tex
index a9c2117f2d..09e9b045fa 100644
--- a/docs/latex/wx/text.tex
+++ b/docs/latex/wx/text.tex
@@ -36,16 +36,19 @@ style is ignored under other platforms.}
 \twocolitem{\windowstyle{wxTE\_AUTO\_URL}}{Highlight the URLs and generate the
 wxTextUrlEvents when mouse events occur over them. This style is supported
 under Win32 only and requires wxTE\_RICH.}
+\twocolitem{\windowstyle{wxTE\_NOHIDESEL}}{By default, the Windows text control
+doesn't show the selection when it doesn't have focus - use this style to force
+it to always show it. It doesn't do anything under other platforms.}
 \twocolitem{\windowstyle{wxHSCROLL}}{A horizontal scrollbar will be created. No effect under GTK+.}
 \end{twocollist}
 
-See also \helpref{window styles overview}{windowstyles} and 
+See also \helpref{window styles overview}{windowstyles} and
 \helpref{wxTextCtrl::wxTextCtrl}{wxtextctrlconstr}.
 
-\wxheading{Remarks}
+\wxheading{wxTextCtrl and C++ streams}
 
-This class multiply-inherits from {\bf streambuf} where compilers allow, allowing code such as 
-the following:
+This class multiply-inherits from {\bf streambuf} where compilers allow,
+allowing code such as the following:
 
 {\small%
 \begin{verbatim}
@@ -58,13 +61,62 @@ the following:
 \end{verbatim}
 }%
 
-If your compiler does not support derivation from {\bf streambuf} and gives a compile error, define the symbol 
-{\bf NO\_TEXT\_WINDOW\_STREAM} in the wxTextCtrl header file.
+If your compiler does not support derivation from {\bf streambuf} and gives a
+compile error, define the symbol {\bf NO\_TEXT\_WINDOW\_STREAM} in the
+wxTextCtrl header file.
+
+Note that independently of this setting you can always use wxTextCtrl itself
+in a stream-like manner:
+
+{\small%
+\begin{verbatim}
+  wxTextCtrl *control = new wxTextCtrl(...);
+
+  *control << 123.456 << " some text\n";
+\end{verbatim}
+}%
+
+always works. However the possibility to create an ostream associated with
+wxTextCtrl may be useful if you need to redirect the output of a function
+taking an ostream as parameter to a text control.
 
-% VZ: it is wrong to say that C++ iostreams are deprecated, we need a better
-%     wording here - disabling this for now
-%Note that any use of C++ iostreams (including this one) is deprecated and might
-%get completely removed in the future.
+Another commonly requested need is to redirect {\bf std::cout} to the text
+control. This could be done in the following way:
+
+{\small%
+\begin{verbatim}
+  #include <iostream>
+
+  wxTextCtrl *control = new wxTextCtrl(...);
+
+  std::streambuf *sbOld = std::cout.rdbuf();
+  std::cout.rdbuf(*control);
+
+  // use cout as usual, the output appears in the text control
+  ...
+
+  std::cout.rdbuf(sbOld);
+\end{verbatim}
+}%
+
+But wxWindows provides a convenient class to make it even simpler so instead
+you may just do
+
+{\small%
+\begin{verbatim}
+  #include <iostream>
+
+  wxTextCtrl *control = new wxTextCtrl(...);
+
+  wxStreamToTextRedirector redirect(control);
+
+  // all output to cout goes into the text control until the exit from current
+  // scope
+\end{verbatim}
+}%
+
+See \helpref{wxStreamToTextRedirector}{wxstreamtotextredirector} for more
+details.
 
 \wxheading{Event handling}
 
@@ -83,12 +135,13 @@ when the text controls contents changes - whether this is due to user input or
 comes from the program itself (for example, if SetValue() is called)}
 \twocolitem{{\bf EVT\_TEXT\_ENTER(id, func)}}{Respond to a wxEVT\_COMMAND\_TEXT\_ENTER event,
 generated when enter is pressed in a single-line text control.}
+\twocolitem{{\bf EVT\_TEXT\_URL(id, func)}}{A mouse event occured over an URL
+in the text control (Win32 only)}
+\twocolitem{{\bf EVT\_TEXT\_MAXLEN(id, func)}}{User tried to enter more text
+into the control than the limit set by
+\helpref{SetMaxLength}{wxtextctrlsetmaxlength}.}
 \end{twocollist}%
 
-%\wxheading{See also}
-%
-%\helpref{wxRichTextCtrl}{wxrichtextctrl}
-%
 \latexignore{\rtfignore{\wxheading{Members}}}
 
 \membersection{wxTextCtrl::wxTextCtrl}\label{wxtextctrlconstr}
@@ -315,6 +368,13 @@ working with controls that contain large amounts of text.
 Gets the current selection span. If the returned values are equal, there was
 no selection.
 
+Please note that the indices returned may be used with the other wxTextctrl
+methods but don't necessarily represent the correct indices into the string
+returned by \helpref{GetValue()}{wxtextctrlgetvalue} for multiline controls
+under Windows (at least,) you should use
+\helpref{GetStringSelection()}{wxtextctrlgetstringselection} to get the selected
+text.
+
 \wxheading{Parameters}
 
 \docparam{from}{The returned first position.}
@@ -327,6 +387,13 @@ consisting of the from and to values.}
 \perlnote{In wxPerl this method takes no parameter and returns a
 2-element list {\tt ( from, to )}.}
 
+\membersection{wxTextCtrl::GetStringSelection}\label{wxtextctrlgetstringselection}
+
+\func{virtual wxString}{GetStringSelection}{\void}
+
+Gets the text currently selected in the control. If there is no selection, the
+returned string is empty.
+
 \membersection{wxTextCtrl::GetValue}\label{wxtextctrlgetvalue}
 
 \constfunc{wxString}{GetValue}{\void}
@@ -522,8 +589,12 @@ This function sets the maximum number of characters the user can enter into the
 control. In other words, it allows to limit the text value length to {\it len}
 not counting the terminating {\tt NUL} character.
 
+If {\it len} is $0$, the previously set max length limi, if any, is discarded
+and the user may enter as much text as the underlying native text control
+widget supports (typically at least 32Kb).
+
 If the user tries to enter more characters into the text control when it
-already is filled up to the maximal length, a 
+already is filled up to the maximal length, a
 {\tt wxEVT\_COMMAND\_TEXT\_MAXLEN} event is sent to notify the program about it
 (giving it the possibility to show an explanatory message, for example) and the
 extra input is discarded.
@@ -534,8 +605,6 @@ Note that this function may only be used with single line text controls.
 
 Only implemented in wxMSW/wxGTK starting with wxWindows 2.3.2.
 
-The {\tt wxEVT\_COMMAND\_TEXT\_MAXLEN} event is only sent by wxMSW.
-
 \membersection{wxTextCtrl::SetSelection}\label{wxtextctrlsetselection}
 
 \func{virtual void}{SetSelection}{\param{long}{ from}, \param{long}{ to}}
