// $Id$
//
-// Copyright (C) 2009
+// Copyright (C) 2009
// Fraunhofer Institute for Open Communication Systems (FOKUS)
// Competence Center NETwork research (NET), St. Augustin, GERMANY
// Stefan Bund <g0dil@berlios.de>
#include "Terminfo.hh"
//#include "Editor.mpp"
-///////////////////////////////hh.p////////////////////////////////////////
+//-/////////////////////////////////////////////////////////////////////////////////////////////////
namespace senf {
namespace term {
void write(char ch);
void write(std::string const & s);
-
+
AbstractTerminal * terminal_;
Terminfo tifo_;
KeyParser keyParser_;
unsigned displayHeight_;
unsigned line_;
};
-
+
/** \brief Single line interactive text editor
LineEditor implements a single-line input widget on an arbitrary AbstractTerminal.
\li The LineEditor supports an arbitrary auxiliary display area below the input line
\li The LineEditor has hide() / show() support to allow editing to be temporarily
interrupted.
-
+
The LineEditor will query the user for an input line. When the user accepts a line,
LineEditor will call a user callback function. After the callback has been called, the
editor is disabled. To accept a new input line, call show().
See the senf::term::bindings namespace for a list of all default provided key binding
functions.
-
+
\section editor_complete Completion suppoprt
bindings::complete():
\code
- void myCompleter(senf::term::LineEditor & editor, unsigned & b, unsigned & e,
+ void myCompleter(senf::term::LineEditor & editor, unsigned & b, unsigned & e,
std::string & prefix, std::vector<std::string> & completions)
{
// Get text to complete
}
senf::term::LineEditor editor (...);
- editor.defineKey(senf::term::KeyParser::TAB,
+ editor.defineKey(senf::term::KeyParser::TAB,
boost::bind(&senf::term::bindings::complete, _1, &myCompleter));
\endcode
The completion protocol is as follows: When completion is desired, the completer function is
called. \a b and \a e are set to 0 and <tt>editor.point()</tt> respectively. \a prefix and
\a completions are empty.
-
+
\li the completer may restrict the to-be-completed string to any subrange by changing \a b
and \a e accordingly.
\li If there is an initial substring which applies to \e all completions but should not be
listed in the list of completions, assign this value to \a prefix.
- \li Add all possible completions to the \a completions vector not including the \a prefix.
+ \li Add all possible completions to the \a completions vector not including the \a prefix.
\li The completion result is taken from the size of the \a completions vector \e only: If
this vector is empty, completion failed (even if \a prefix is set), a single entry in \a
completions (even if it is the empty string) signals a unique completion.
-
+
\section editor_auxarea The aux display area
: public BaseEditor
{
public:
- ///////////////////////////////////////////////////////////////////////////
+ //-////////////////////////////////////////////////////////////////////////
// Types
typedef boost::function<void (LineEditor&)> KeyBinding; ///< Type of a key binding function
static unsigned const MAX_HISTORY_SIZE = 1024u;
- ///////////////////////////////////////////////////////////////////////////
+ //-////////////////////////////////////////////////////////////////////////
LineEditor(AbstractTerminal & terminal, AcceptCallback cb);
///< Create a LineEditor
/**< \param[in] terminal abstract terminal interface
\param[in] cb callback to call for complete input
line */
-
- ///////////////////////////////////////////////////////////////////////////
+
+ //-////////////////////////////////////////////////////////////////////////
///\name Overall edit control
- ///\{
+ //\{
void show(); ///< Enable editor widget
void hide(); ///< Disable editor widget
void forceRedisplay(); ///< Redisplay the editor buffer \e now
void prompt(std::string const & text); ///< Set prompt string
- ///\}
+ //\}
///\name Cursor and display movement
- ///\{
+ //\{
void gotoChar(unsigned n); ///< Move cursor to position \a n
void scrollTo(unsigned n); ///< Move positon \n to beginning of display line
- ///\}
+ //\}
///\name Text manipulation
- ///\{
+ //\{
void deleteChar(unsigned n=1); ///< Delete \a n characters at point
void insert(char ch); ///< Insert \a ch at point
text. The cursor will be placed at position \a pos
within this text. */
- ///\}
+ //\}
///\name History
- ///\{
+ //\{
void pushHistory(std::string const & text, bool accept = false);
///< Add string \a text to history
void prevHistory(); ///< Switch to previous history entry
void nextHistory(); ///< Switch to next history entry
- ///\}
+ //\}
///\name Aux Display
- ///\{
+ //\{
void auxDisplay(unsigned line, std::string const & text);
///< Display \a text on aux display line \a lilne
unsigned maxAuxDisplayHeight(); ///< Get maximum height of the aux display area
void clearAuxDisplay(); ///< Clear the aux display area
- ///\}
+ //\}
///\name Get information
- ///\{
+ //\{
std::string const & text(); ///< Get current editor buffer contents
unsigned point(); ///< Get current cursor position
unsigned displayPos(); ///< Get current display position
keycode_t lastKey(); ///< Get last key code received
- ///\}
+ //\}
///\name Key bindings
- ///\{
+ //\{
void defineKey(keycode_t key, KeyBinding binding);
///< Bind key \a key to \a binding
void unsetKey(keycode_t key); ///< Remove all bindings for \a key
- ///\}
-
+ //\}
+
private:
virtual bool cb_init();
virtual void cb_windowSizeChanged();
void nextHistory (LineEditor & editor); ///< Move to next history entry
void clearScreen (LineEditor & editor); ///< Clear screen and redisplay editor
- typedef boost::function<void (LineEditor &, unsigned & b, unsigned & e,
+ typedef boost::function<void (LineEditor &, unsigned & b, unsigned & e,
std::string & prefix, std::vector<std::string> &)> Completer;
void complete (LineEditor & editor, Completer completer);
///< Complete text at cursor
/**< This function calls \a completer to find the list of
possible completions for the text between \a b and \a e
(as passed to the completer). The completer must add
- all possible completions to the \a completions vector.
+ all possible completions to the \a completions vector.
\see \ref editor_complete */
}}
-///////////////////////////////hh.e////////////////////////////////////////
+//-/////////////////////////////////////////////////////////////////////////////////////////////////
//#include "Editor.cci"
//#include "Editor.ct"
//#include "Editor.cti"
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